Influence of the building foundations on the stress-strain state of the retaining structures

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DOI: https://doi.org/10.32347/0475-1132.38.2019.9-15
Keywords:
Stress-strain state, retaining structures, pit, bending moments, horizontal deformations.

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Igor Boyko
Київський національний університет будівництва і архітектури 31, просп. Повітрофлотський, Київ, Україна, 03037
https://orcid.org/0000-0002-6841-0271
Vitalii Ruchkivskyi
Київський національний університет будівництва і архітектури 31, просп. Повітрофлотський, Київ, Україна, 03037
https://orcid.org/0000-0001-8982-2884

Abstract

Construction of objects with underground facilities requires the installation of a deep excavation, which should be from the conditions of preservation in the initial state of surrounding buildings. To do this, you must fulfill the forecast of the impact of excavation on the stress-strain state of this surrounding buildings. The difficulty in fulfilling such a forecast is that many important factors need to be taken into account: the configuration and condition of the surrounding buildings, the parameters of the pit, the load, the uneven soil location, the stage-bystage of the building works. Significant influence also carries out the type of foundation structures that are erected in the pit. The research of the foundation structures’ influance on the stress-strain state of the pit’s protective structures has been carried out. The simulation of three variants of the foundation structures is executed, namely: a foundation plate 1.5 m thick, a pile’s base with 5 m lengths of pile and a pile foundation with 16 m lengths of piles. The calculation is carried out taking into account the step-by-step installation of the pit and underground parking. In this case, compared horizontal displacements and bending moments in the piles of the retaining wall in dependence on the type of foundation structures. The schedule of change of bending moments in piles of retaining structures is given, depending on the type of parking foundation. The simulation’s results of the system "soil massif - retaining structures" are presented at the stage-by-stage construction of underground parking. The influence of the foundation structures of the underground facilities on the stress-strain state of the soil massif and the retaining wall is shown. The dependence of the bending moments and the displacements of the retaining wall on the type of foundation structures is established. The most rational version of the foundation of the building with underground parking in the present conditions is revealed.

Article Details

How to Cite
Boyko, I., & Ruchkivskyi, V. (2019). Influence of the building foundations on the stress-strain state of the retaining structures. Bases and Foundations, (38), 9–15. https://doi.org/10.32347/0475-1132.38.2019.9-15
Issue
No. 38 (2019): Bases and Foudations
Section
Статті
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Author Biographies

Igor Boyko, Київський національний університет будівництва і архітектури 31, просп. Повітрофлотський, Київ, Україна, 03037

Завідувач кафедри геотехніки д.т.н., проф.

Vitalii Ruchkivskyi, Київський національний університет будівництва і архітектури 31, просп. Повітрофлотський, Київ, Україна, 03037

Асистент кафедри геотехніки

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